In early April, as renewed fighting between Azerbaijan and Armenia over the disputed Nagorno-Karabakh region made headlines in Turkey, there was little talk of the crucial role of Israeli weapons in the clashes. Only the daily Hurriyet reported on Azerbaijan's use of the Israeli Harop armed drone, which generated Armenian protests.

Justice and Development Party (AKP) spokesperson Omer Celik summarized why the issue should be important to the press: “Azerbaijan’s battle is our battle; their martyrs are our martyrs.” Indeed, Azerbaijan consistently scores as Turkey's closest friend in Turkish public opinion polls, while Israel maintains its status as a serious threat in the same polls.

Intriguingly, Israel is Azerbaijan’s main arms supplier, a situation that poses a puzzle: Why have Turks remained silent as Azerbaijan, their closest friend, and Israel, their greatest rival — if not necessarily enemy — have grown closer? The silence of two sections of Turkish society is particularly noteworthy: One is Turkish ultra-nationalists, whose commitment to Azerbaijan is near-absolute; the other is Islamists, who miss no opportunity to bash Israel. Why are these two groups, whose protests are rarely if ever curtailed by the police in Turkey, ignoring this development?

The Israeli-Azeri cooperation has expanded as Israeli-Turkish relations have soured since the 2010 Mavi Marmara incident. Richard Giragosian, director of the Regional Studies Center (RSC), an independent think tank in Yerevan, Armenia, told Al-Monitor, “Israel has replaced Turkey as an essential military patron of Azerbaijan, as seen in the 2012 deal involving the Azerbaijani procurement of drones and anti-aircraft missile defense systems from the state-run Israel Aerospace Industries for $1.6 billion.” Giragosian explained that the bilateral relations are not limited to the weapons trade. The countries' interests converge in three main areas — “security and military, including intelligence cooperation; energy and trade; and geopolitical strategy,” he said.